利用同步TCP编写网络聊天程序

利用同步TCP编写网络聊天程序 很值得学习

using System;
using System.Windows.Forms;
//添加的命名空间引用
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.IO;
namespace SyncChatClient
{
    public partial class MainForm : Form
    {
        private bool isExit = false;
        private TcpClient client;
        private BinaryReader br;
        private BinaryWriter bw;
        public MainForm（）
        {
            InitializeComponent（）;
            Random r = new Random（（int）DateTime.Now.Ticks）;
            textBoxUserName.Text = “user“ + r.Next（100 999）;
            listBoxOnlineStatus.HorizontalScrollbar = true;

        }
        /// 

        /// 【连接服务器】按钮的Click事件
        /// 

        private void buttonConnect_Click（object sender EventArgs e）
        {
            buttonConnect.Enabled = false;
            try
            {
                //此处为方便演示，实际使用时要将Dns.GetHostName（）改为服务器域名
                client = new TcpClient（Dns.GetHostName（） 51888）;
                AddTalkMessage（“连接成功“）;
            }
            catch
            {
                AddTalkMessage（“连接失败“）;
                buttonConnect.Enabled = true;
                return;
            }
            //获取网络流
            NetworkStream networkStream = client.GetStream（）;
            //将网络流作为二进制读写对象
            br = new BinaryReader（networkStream）;
            bw = new BinaryWriter（networkStream）;
            SendMessage（“Login“ + textBoxUserName.Text）;
            Thread threadReceive = new Thread（new ThreadStart（ReceiveData））;
            //threadReceive.IsBackground = true;
            threadReceive.Start（）;
        }
        /// 
处理接收的服务器端数据

        private void ReceiveData（）
        {
            string receiveString = null;
            while （isExit == false）
            {
                try
                {
                    //从网络流中读出字符串
                    //此方法会自动判断字符串长度前缀，并根据长度前缀读出字符串
                    receiveString = br.ReadString（）;
                }
                catch
                {
                    if （isExit == false）
                    {
                        MessageBox.Show（“与服务器失去联系。“）;
                    }
                    break;
                }
                string[] splitString= receiveString.Split（‘‘）;
                string command = splitString[0].ToLower（）;
                switch （command）
                {
                    case “login“:  //格式：login用户名
                        AddOnline（splitString[1]）;
                        break;
                    case “logout“:  //格式：logout用户名
                        RemoveUserName（splitString[1]）;
                        break;
                    case “talk“:  //格式：talk用户名对话信息
                        //AddTalkMessage（splitString[1] + “：\r\n“）;
                        //AddTalkMessage（receiveString.Substring（
                        //    splitString[0].Length + splitString[1].Lengt

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      13824  2010-08-08 15:23  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\bin\Debug\SyncChatClient.exe

     文件      46592  2010-08-08 15:23  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\bin\Debug\SyncChatClient.pdb

     文件      14328  2010-08-09 08:47  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\bin\Debug\SyncChatClient.vshost.exe

     文件        490  2007-07-21 01:33  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\bin\Debug\SyncChatClient.vshost.exe.manifest

     文件       7733  2010-08-08 15:23  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\MainForm.cs

     文件       7954  2009-04-10 20:35  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\MainForm.Designer.cs

     文件       5814  2009-04-10 20:35  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\MainForm.resx

     文件       4604  2010-08-09 08:47  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\Debug\SyncChatClient.csproj.FileListAbsolute.txt

     文件        850  2009-04-10 20:35  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\Debug\SyncChatClient.csproj.GenerateResource.Cache

     文件      13824  2010-08-08 15:23  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\Debug\SyncChatClient.exe

     文件        180  2009-04-10 20:35  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\Debug\SyncChatClient.MainForm.resources

     文件      46592  2010-08-08 15:23  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\Debug\SyncChatClient.pdb

     文件        180  2009-04-08 02:47  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\Debug\SyncChatClient.Properties.Resources.resources

     文件       4608  2009-04-08 01:40  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll

     文件         60  2008-05-05 00:01  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\SyncChatClient.csproj.FileList.txt

     文件       2704  2008-08-31 03:01  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\obj\SyncChatClient.csproj.FileListAbsolute.txt

     文件        476  2008-03-20 00:33  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\Program.cs

     文件       1200  2008-03-20 00:33  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\Properties\AssemblyInfo.cs

     文件       2852  2008-09-08 12:59  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\Properties\Resources.Designer.cs

     文件       5612  2008-03-20 00:33  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\Properties\Resources.resx

     文件       1112  2008-09-08 12:59  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\Properties\Settings.Designer.cs

     文件        249  2008-03-20 00:33  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\Properties\Settings.settings

     文件       3458  2008-09-08 12:59  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient\SyncChatClient.csproj

     文件        932  2008-09-08 12:59  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient.sln

    ..A..H.     24576  2010-08-09 08:47  利用同步TCP编写网络聊天程序\SyncChatClient\SyncChatClient.suo

     文件      13824  2010-08-08 15:10  利用同步TCP编写网络聊天程序\SyncChatServer\SyncChatServer\bin\Debug\SyncChatServer.exe

     文件      46592  2010-08-08 15:10  利用同步TCP编写网络聊天程序\SyncChatServer\SyncChatServer\bin\Debug\SyncChatServer.pdb

     文件      14328  2010-08-08 15:24  利用同步TCP编写网络聊天程序\SyncChatServer\SyncChatServer\bin\Debug\SyncChatServer.vshost.exe

     文件        490  2007-07-21 01:33  利用同步TCP编写网络聊天程序\SyncChatServer\SyncChatServer\bin\Debug\SyncChatServer.vshost.exe.manifest

     文件       9200  2009-12-06 22:08  利用同步TCP编写网络聊天程序\SyncChatServer\SyncChatServer\MainForm.cs

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